Add Overall Threat Level indicator to realtime-1705 threat-analysis

Agent-Logs-Url: https://github.com/Hack23/riksdagsmonitor/sessions/5cded2f9-1e59-40a2-9692-60ecd33562ba

Co-authored-by: pethers <1726836+pethers@users.noreply.github.com>

Author: Copilot

analysis/daily/2026-04-18/realtime-1705/threat-analysis.md

@@ -1,6 +1,16 @@
 # Threat Analysis — Spring 2026 Swedish Legislative Cycle
 **Analysis run:** realtime-1705 | **Date:** 2026-04-18
 
+## Overall Threat Level
+
+| Indicator | Value |
+|-----------|-------|
+| **Overall Threat Level** | HIGH |
+| **Severity** | HIGH |
+| **Confidence** | MEDIUM |
+
+Rationale: Multiple simultaneous high-probability threats (legal challenge to HD01SfU22, SiS capacity crisis) combined with medium-probability systemic risks (electoral backlash, Riksrevisionen criticism, external tariff shock) produce an elevated aggregate threat posture with medium analytic confidence given dependence on external (ECtHR, US trade policy) variables.
+
 ## STRIDE Framework Application
 
 ### Spoofing (Identity/Authority Threats)